Pocket postal scale.



J. s. TIBPERY. POCKET POSTAL SOME. APPLIUATION FILED FEB. 8, 1909.

Patented Aug. 24,1909.

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JACOB S.-TIP1 "ERY, F OMAHA, NEBRASKA.

POCKET POSTAL SCALE To all whom it may concern: 7

Be it known that I, JACOB S. TIPPERY, eiti zen of the United States,residing at Omaha, in the county of Douglas and State of Ne braska, haveinvented certain new and useful Improvements in Pocket Postal Scales, ofwhich the following is a specification.

This invention relates to improvements in a pocket scales and theespecial'oblect of the improvenients which forinthe su iject mat ier oithis application is to producea device ol this kind that can be cheaply1nanufaetnred, easily carried in the pocket and that will accuratelyweigh letters and light packages which may be suspended therefrom.

An importantobject of my invention is to provide means for adjusting thetension of the controlling spring, and to so house the operative partsthat theywill be :protected from injury while being carried in the userspockets.

In the accompanying drawing I have shown my improved pocket letterweigher on a magniiied scale in the following views Figure 1 is anelevation of the scales complete, and Fig. 2 is a verticalcross-sectional view of the scales.

Referring to the details of thedrawing, 3 represents the lower member ofthe tubular casing of the improved scale, and the same is formed fromthin metal in the thiinble shape shown, with an annular rib 4 near itsupper edge, and is provided \Vlilll a pin 5 extending outwardly at onepoint. 6- represents the other member of the casing, which is similar inform to member 3 but is somewhat longer and is adapted to fit over theupper end of the latter. An angular slot 14 is formed. in the side ofthe member-6 which is adapted to receive the pin 5 and thus eiiect abayonet joint which will interlock the two members 3 and G'againstaccidental disconnection,

7 represents an annular washer which is inserted in the member 3 and isheld in place by corrugating the walls of the latter on each side of thewasher, as clearly shown in .Fig. 2. l lxtending through the roundopening in the center of the washer 7, is the weighing rod,

the upper portion 8 ol' whiclris round, in

cross-six'-tioii, while the lower part is square in cross-section and iscalibrated in ounces and fractions thereof. The part 9 extends through asuitable opening,therel'or on the bottom of the casing nomber 3.

Hurroundint the portion 8 of the weighrod is a compression coil-spring12, the lower Specification of Letters Patent. Patented Aug. 24, 1909-Application filed. February 8, 1909. Serial No. 476,692.

end of which bears upon the washer 7 and the upper end against anadjust-able milled nut,

. 13 which has threaded engagement with suitable threads on the upperportion of the rod 8, thereby permitting adjustment of the nut toincrease or diminish the --compression of the spring 12. Access to thisnut is attained. by removing the member 6.- The rodportion 8 has an easysliding iit in the washer 7 and the portion 9 correspondingly slides inthe opening in the bottom of the casing member 3, and these two bearingsserve to maintain the weigh-rod in its correct weighs ing position.Theipin limits the downward movement of the rod 8.

From'the lower end of the weigh-rod extends the letter-clip portion ofmy invention, and while this feature is capable'of many ef=- fectiveconstructions for grasping letters nd similar articles, the formshownherewith affords a relatively wide frictional beariiig on theletter which thereby tends to support it when being weighed This eli pis composed of two complementary members each formed of a piece ofspring wi're bent to form the stem and a hook terminating in=the eye 11.These members are so arranged that their free end portions are in closefrictional engagement and the eye of one overlaps the adjacent stem ofthe other. l urthermore the hooks may have a cord such is frequentlywrapped around a package, suspended therefrom while the latter is beingweighed. there the scales are used on a desk, the form of clip shownwill serve as a convenient means for hanging the device on a nail. Asthe springs of such devices are sensitive to atmospheric conditions, theimportance of having means for ad usting the tension of the s rings isapparent, and the adjusting iiut I iave provided while readilyaccessible, is normally concealed in the easing and cannot be turnedaccidentally as would be the case if it was exposed.

Having thus described my invention what I claim as new, is:-

1. In a weighing device, a casing composed of two tubular sectionsadapted to be interlocked, a weigh-bar slidably mounted in said casingand having its lower portion cali bratcd, a spring arranged in saidcasing adapted to support said weigh-bar, a washer fixed in said casingand supporting said spring, means for regulating the tension of saidspring, and a clip on the calibrated portion of said weigh-bar. I

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2. Ina Weighing-d vice, acasing composed regulating the tension of saidspring), ends of" two separable interlocking tubular secfrictional clipsecured to said Weighar. 1 10 tions, :1 weigh-bar slidably' mounted insaid In testimony whereof I affix my signature casing and having its 1ower portion caliin the presence of two witnesses.

, 5' brated, a spring arranged 111 said casing and JACOB S. TIPPERY.

adapted to support said bar, means for sup- Witnesses: porting saidspring, said means to form a A. P. PAULSONQ guide for said bar, means onsaid bar for W. K. AYREs.

